1. Assistant Professor, Durham School of Architectural Engineering and Construction, Univ. of Nebraska, 113 Nebraska Hall, Lincoln, NE 68588 (corresponding author).
2. Beavers Endowed Professor of Construction Engineering and Associate Chair; and Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Colorado at Boulder (UCB), 428 UCB, 1111 Engineering Dr., Boulder, CO 80309-0428.
3. Professor and Chair, Dept. of Civil, Environmental, and Architectural Engineering and Cooperative Institute for Research in Environmental Sciences, Univ. of Colorado at Boulder (UCB), 428 UCB, 1111 Engineering Dr., Boulder, CO 80309-0428.